"Am I the only one this creeps out?"
I guess we all view things like this through our own filter.
I've got a close friend who was just diagnosed with idiopathic pulmonary fibrosis. It's untreatable and fatal. At the end you suffocate. Normal life expectancy after diagnosis is 5-6 years though he may have a bit longer because they caught his very early. Ten years at the most is probably all he's got. He'll need replacement lungs.
I view advances like this, not as "creepy" though I see your point, but as potentially terrific news for my friend and many millions of others.
A friend of mine, on May 15th, is giving one of her Kidney's to her best friend.....that is what I first thought of when I saw your post.....that and the thought of CERTAIN people living forever.